265780368 has 240 divisors, whose sum is σ = 893692800. Its totient is φ = 72161280.

The previous prime is 265780349. The next prime is 265780369. The reversal of 265780368 is 863087562.

It is not an unprimeable number, because it can be changed into a prime (265780369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2438298 + ... + 2438406.

It is an arithmetic number, because the mean of its divisors is an integer number (3723720).

Almost surely, 2^265780368 is an apocalyptic number.

265780368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265780368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446846400).

265780368 is an abundant number, since it is smaller than the sum of its proper divisors (627912432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265780368 is a wasteful number, since it uses less digits than its factorization.

265780368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 265780368 is about 16302.7717888708. The cubic root of 265780368 is about 642.9457049629.

The spelling of 265780368 in words is "two hundred sixty-five million, seven hundred eighty thousand, three hundred sixty-eight".